package com.chengqs.server.handler;

import com.chengqs.server.session.Session;
import com.chengqs.server.session.SessionFactory;
import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import lombok.extern.slf4j.Slf4j;

@Slf4j
@ChannelHandler.Sharable
public class QuitHandler extends ChannelInboundHandlerAdapter {

    // 当连接断开时触发 inactive 事件
    @Override
    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
        Session session = SessionFactory.getSession();
        String username = session.getUsername(ctx.channel());
        if (username != null) {
            session.unbind(ctx.channel());
            log.debug("{} 已经断开", username);
        }

    }

    // 当出现异常时触发
    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        Session session = SessionFactory.getSession();
        String username = session.getUsername(ctx.channel());
        if (username != null) {
            session.unbind(ctx.channel());
            log.debug("{} 已经异常断开 异常是{}", username, cause.getMessage());
        }
    }
}
